22566422016 has 160 divisors (see below), whose sum is σ = 68353422720. Its totient is φ = 7347013632.

The previous prime is 22566421993. The next prime is 22566422057. The reversal of 22566422016 is 61022466522.

22566422016 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 642 + 2 + 0 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575451 + ... + 613413.

It is an arithmetic number, because the mean of its divisors is an integer number (427208892).

Almost surely, 2^22566422016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22566422016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34176711360).

22566422016 is an abundant number, since it is smaller than the sum of its proper divisors (45787000704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22566422016 is an equidigital number, since it uses as much as digits as its factorization.

22566422016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38033 (or 38011 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 22566422016 its reverse (61022466522), we get a palindrome (83588888538).

The spelling of 22566422016 in words is "twenty-two billion, five hundred sixty-six million, four hundred twenty-two thousand, sixteen".